Low Rpm 12V 24V 48V Permanent Magnet Generator 500W PMG With Controller|Alternative Energy Generators| - AliExpress
Amazon.com: Mars Rock 500W 580 RPM NdFeb PMG Rare Earth Permanent Magnet Generator 12V 24V for DIY Horizontal Wind Turbine Generator Windmill Exercise Bike Hydro Turbine Electric Motor Optional 1 or 2